// Copyright 2014 The Chromium Authors. All rights reserved.
// Use of this source code is governed by a BSD-style license that can be
// found in the LICENSE file.

#ifndef CONTENT_PUBLIC_BROWSER_DEVTOOLS_FRONTEND_HOST_H_
#define CONTENT_PUBLIC_BROWSER_DEVTOOLS_FRONTEND_HOST_H_

#include <string>

#include "base/callback.h"
#include "base/strings/string_piece.h"
#include "content/common/content_export.h"

namespace content {

class RenderFrameHost;

// This class dispatches messages between DevTools frontend and Delegate
// which is implemented by the embedder.
// This allows us to avoid exposing DevTools frontend messages through
// the content public API.
class DevToolsFrontendHost {
public:
    using HandleMessageCallback = base::Callback<void(const std::string&)>;

    // Creates a new DevToolsFrontendHost for RenderFrameHost where DevTools
    // frontend is loaded.
    CONTENT_EXPORT static DevToolsFrontendHost* Create(
        RenderFrameHost* frontend_main_frame,
        const HandleMessageCallback& handle_message_callback);

    CONTENT_EXPORT virtual ~DevToolsFrontendHost() { }

    CONTENT_EXPORT virtual void BadMessageRecieved() { }

    // Returns bundled DevTools frontend resource by |path|. Returns empty string
    // if |path| does not correspond to any frontend resource.
    CONTENT_EXPORT static base::StringPiece GetFrontendResource(
        const std::string& path);
};

} // namespace content

#endif // CONTENT_PUBLIC_BROWSER_DEVTOOLS_FRONTEND_HOST_H_
